diff --git a/apps/web/src/app/api/admin/make-agents-public/route.ts b/apps/web/src/app/api/admin/make-agents-public/route.ts
new file mode 100644
index 0000000..3c895a8
--- /dev/null
+++ b/apps/web/src/app/api/admin/make-agents-public/route.ts
@@ -0,0 +1,42 @@
+import { prisma } from '@tpmjs/db';
+import { type NextRequest, NextResponse } from 'next/server';
+
+export const runtime = 'nodejs';
+export const dynamic = 'force-dynamic';
+
+/**
+ * POST /api/admin/make-agents-public
+ * One-off endpoint to update all existing agents to be public.
+ * Protected by CRON_SECRET.
+ */
+export async function POST(request: NextRequest): Promise<NextResponse> {
+  // Verify authorization
+  const authHeader = request.headers.get('authorization');
+  const cronSecret = process.env.CRON_SECRET;
+
+  if (!cronSecret || authHeader !== `Bearer ${cronSecret}`) {
+    return NextResponse.json({ error: 'Unauthorized' }, { status: 401 });
+  }
+
+  try {
+    // Update all agents to be public
+    const result = await prisma.agent.updateMany({
+      where: { isPublic: false },
+      data: { isPublic: true },
+    });
+
+    // Get all agents for verification
+    const agents = await prisma.agent.findMany({
+      select: { id: true, name: true, isPublic: true },
+    });
+
+    return NextResponse.json({
+      success: true,
+      updated: result.count,
+      agents: agents.map((a) => ({ name: a.name, isPublic: a.isPublic })),
+    });
+  } catch (error) {
+    console.error('Failed to update agents:', error);
+    return NextResponse.json({ success: false, error: 'Failed to update agents' }, { status: 500 });
+  }
+}
diff --git a/packages/db/prisma/make-agents-public.ts b/packages/db/prisma/make-agents-public.ts
new file mode 100644
index 0000000..0f19f6d
--- /dev/null
+++ b/packages/db/prisma/make-agents-public.ts
@@ -0,0 +1,34 @@
+/**
+ * One-off script to update all existing agents to be public.
+ * Run with: pnpm --filter=@tpmjs/db exec tsx prisma/make-agents-public.ts
+ */
+import { PrismaClient } from '@prisma/client';
+
+const prisma = new PrismaClient();
+
+async function main() {
+  console.log('Updating all agents to be public...');
+
+  const result = await prisma.agent.updateMany({
+    where: { isPublic: false },
+    data: { isPublic: true },
+  });
+
+  console.log(`Updated ${result.count} agents to isPublic=true`);
+
+  // Show all agents now
+  const agents = await prisma.agent.findMany({
+    select: { id: true, name: true, isPublic: true },
+  });
+  console.log('\nAll agents:');
+  for (const agent of agents) {
+    console.log(`  - ${agent.name} (isPublic: ${agent.isPublic})`);
+  }
+}
+
+main()
+  .catch((e) => {
+    console.error('Error:', e);
+    process.exit(1);
+  })
+  .finally(() => prisma.$disconnect());